iRacing Week 13 2025 Season 1 Schedule

Like every season, the last week of the season is the famous week 13. Week in which iRacing launches its new content and gives us all a chance to test the new content we have acquired in tests for fun.

However, there are still a handful of official series for those daring who prefer to compete and risk their licenses and iRating in this dangerous week.

Let’s remember that every day we race on a different circuit.

• Remember, you can join iRacing by clicking here.

Looking forward to getting behind the wheel of our newest cars and tracks? The latest edition of iRacing Week 13 has you covered with all sorts of fun new weeklong championships!

For our newest racers, iRacing Week 13 is our week between the four quarterly iRacing seasons where we debut new content, give our most serious racers a week to recharge between championships, and have some fun with a handful of out-of-the-box ideas. Here’s the list of what to expect:

New Content and Features Series* (*all start after build)

• 13^th Week iRacing Prototype Challenge – Fixed: GTP, LMP2
• 13^th Week Funny Forecast: GT4, BMW M2 CS, Toyota GR86 at Nurburgring Nordschleife (rain expected)
• 13^th Week iRacing Xfinity Challenge: NASCAR Xfinity Series (includes Portland/art update tracks)
• 13^th Week Shiny New Shakedown: ARCA Chevrolet SS/Ford Mustang/Toyota Camry (includes art update tracks)
• 13^th Week iRacing Legends Cup: updated Legends
• 13^th Week Legends Road Series: updated Legends
• 13^th Week IR-18 Shakedown: Dallara IR-18 at Portland

Ranked Series (iRating and Safety Rating affected)

• Oval Series
  • 13^th Week Street Stock Challenge (uses new every 15 min race launch)
  • 13^th Week Trucks – Fixed
• Sports Car Series
  • 13^th Week Matt Malone MX-5 Cup (uses new every 15 min race launch)
  • 13^th Week Ferrari GT3 Challenge
  • 13^th Week Porsche Cup Series
• Formula Car Series
  • 13^th Week FF1600 (uses new every 15 min race launch)
• Dirt Oval Series
  • 13^th Week Dirt Street Stock Challenge
  • 13^th Week DIRTcar Pro Late Model – Fixed
  • 13^th Week Midget Cup
• Dirt Road Series
  • 13^th Week iRacing Rallycross Series
  • 13^th Week iRacing Rallycross Lite

Unranked Series (Sporting Code still applies, iRating and Safety Rating not affected)

• Oval Series
  • Pickup Cup
  • Dallara Dash
  • Carburetor Cup
  • 13^th Week iRacing Blizzard Series: Mini Stocks (uses new every 15 min race launch)
• Road Series
  • 13^th Week Battle of the Little Wings: Legacy Pro Mazda, Formula Renault 2.0, Skip Barber Formula 2000 (no rain, includes Portland)
  • 13^th Week iRacing Figure GR8: Global MX-5 Cup, BMW M2 CS
  • 13^th Week iRacing Tube Frame Twister: Street Stocks, Supercars Gen 3 (no rain)
  • 13^th Week Ridiculousness: Nissan GTP ZXT, Porsche Mission R, Radical SR8 (no rain, includes Portland)
  • 13^th Week Sebring Sunrise: GT3 (uses new every 15 min race launch; 15 min races)
• Dirt Oval Series
  • 13^th Week Pro 2 Dirt Oval: Pro 2 Lite
  • 13^th Week Super Slide: Dirt Legends, Dirt Street Stock
  • 13^th Week Mudskipping: Ray FF1600
• Dirt Road Series
  • 13^th Week Symkhana: Renault Clio, Toyota GR86, Global MX-5 Cup (rallycross courses)
  • 13^th Week 2×4 Off-Road Trucks: Pro 4, Pro 2 (mix of rallycross, short course, dirt oval tracks)

Time Attacks

• Hill Climbs
• Porsche Experience Center: Porsche 911 GT3 Cup (992)

See you on the track!